What Is the Difference Between A, and a Whistle Stop Strike?

There used to be a time when these mass industrial unions the stewards would walk around with a whistle on their neck, ad have a whistle on a lanyard. And everyone would set down their tools until management would come out and they would either agree to pay more, or stop what was happening and fix it. This is explicitly banned in sif i'm remembering this right, is that there's a specific thing that says you can't doe secondary strikes any more. The national labor relations act has passed 19 35 - which is like the ne this is the beginning labor piece,. but you cannot do secondary strikes like like this. But we still don't, i think it's so far